A supersymmetric electroweak scale seesaw model

TL;DR

This paper introduces a minimal supersymmetric inverse seesaw model with a single Z6 symmetry, linking the inverse seesaw scale to electroweak symmetry breaking, and demonstrating compatibility with current experimental bounds.

Contribution

It presents a novel, minimal supersymmetric inverse seesaw model with a unique Z6 symmetry, connecting the seesaw scale to electroweak symmetry breaking.

Findings

Successfully reproduces neutrino masses and mixing

Consistent with bounds on neutrinoless double beta decay

Compatible with charged lepton flavor violation constraints

Abstract

In this paper we propose a novel supersymmetric inverse seesaw model which has only one additional $Z_6$ symmetry. The field content is minimal to get a viable neutrino spectrum at tree-level. Interestingly, the inverse seesaw scale in our model is related to the scale of electroweak symmetry breaking. Due to that origin we are less biased about hierarchies and discuss three different types of the inverse seesaw mechanism with different phenomenologies. We can successfully reproduce neutrino masses and mixing and our model is consistent with current bounds on neutrinoless double beta decay, non-unitarity of the PMNS matrix and charged lepton flavor violation.